Help with IPA, Gothic

I'm working on a conlang that's essentially a daughter of Gothic; but
I'm at a loss for the correct IPA for the Germanic (I'm assuming)
alveolar and uvular fricatives, the r, as well as the spanish trilled r.
I also am at a loss to read the form of romanized gothic I have at my
disposal. Some figures, such as the thorn, I assume to be the /T/ but
there are several others like the British pound sign that I have no clue
how to read. Can any of y'all be of service?
Thanks!
DH